The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
Jan. 24, 2020
Seiko Epson Corporation, Tokyo, JP;
Hidehiko Yajima, Matsumoto, JP;
Tetsuo Takagi, Okaya, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
There is a provided a drive circuit in which a first drive signal output circuit includes a first control circuit that controls an output of a first drive signal, and a first abnormality detection circuit that detects an abnormality in a first drive signal output circuit, a second drive signal output circuit includes a second control circuit that controls an output of a second drive signal, and a second abnormality detection circuit that detects an abnormality in a second drive signal output circuit, the first drive signal output circuit transmits an occurrence of abnormality to the second drive signal output circuit, when the first abnormality detection circuit detects the abnormality, and the second drive signal output circuit transmits an occurrence of abnormality to the first drive signal output circuit, when the second abnormality detection circuit detects the abnormality.